package java.util;

public interface SortedMap<K, V> extends Map<K, V> {

	public Comparator<? super K> comparator();
	public K firstKey();
	public SortedMap<K, V> headMap(K toKey);
	public K lastKey();
	public SortedMap<K, V> subMap(K fromKey, K toKey);
	public SortedMap<K, V> tailMap(K fromKey);
}
